Whealthy
I have already earned over 1,000,000 coins (top right corner) in a couple of months. That may sound like a lot, but you need 2,600,000 coins to get the smallest reward, a $1.60 PayPal transfer. 13,000,000 coins for the next reward, a $9.20 PayPal transfer. It is low maintenance as far as tracking your steps, but you need to go in and claim your coins. I think the coins reset to zero at midnight if you don’t claim them. There are bonus coins for watching ads. You can also earn more coins by completing tasks.